Portable refrigerator



FIG. 1 is a front view of a design of the portable refrigerator;

FIG. 2 is a rear view of the design of FIG. 1;

FIG. 3 is a left side elevation view of the design of FIG. 1;

FIG. 4 is a right side elevation view of the design of FIG. 1;

FIG. 5 is a top plan view of the design of FIG. 1;

FIG. 6 is a bottom plan view of the design of FIG. 1;

FIG. 7 is an upper perspective view of the design of FIG. 1;

FIG. 8 is a front view of the first embodiment of the design of FIG. 1 with the doors shown in an open position;

FIG. 9 is a rear view of the design of FIG. 1 with the doors shown in an open position;

FIG. 10 is a right side elevation view of the design of FIG. 1 with the doors shown in an open position;

FIG. 11 is a left side elevation view of the design of FIG. 1 with the doors shown in an open position;

FIG. 12 is a top plan view of the design of FIG. 1 with the doors shown in an open position;

FIG. 13 is a bottom plan view of the design of FIG. 1 with the doors shown in an open position; and,

FIG. 14 is an upper perspective view of the design of FIG. 1 with the doors shown in an open position.

The broken lines are included for the purpose of illustrating portions of the portable refrigerator that form no part of the claimed design. 

CLAIM The ornamental design for a portable refrigerator, as shown and described. 